Fukui Tadao, Kano Hiroyuki, Saito Isao
Assistant professor, Division of Orthodontics, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, Japan.
Oral surgeon, Yukiguni Yamato Hospital, Minamiuonuma City, Niigata, Japan.
Am J Orthod Dentofacial Orthop. 2016 Jun;149(6):889-98. doi: 10.1016/j.ajodo.2015.07.043.
A woman was referred to the orthodontic clinic for treatment. She was diagnosed with a skeletal Class II malocclusion, a steep mandibular plane, and an anterior open bite. Conventional orthodontic treatment was considered to correct the maxillary protrusion and anterior open bite, but the patient also requested improvement of her facial esthetics. We therefore decided that nonsurgical treatment consisting of 4 premolar extractions combined with temporary anchorage devices was indicated. Satisfactory improvement of the overjet and overbite, and proper functional occlusion were obtained, resulting in a Class I molar relationship. Active treatment was completed in 2 years 10 months, and the result remained stable at 2 years 6 months after debonding.
一名女性被转诊至正畸诊所接受治疗。她被诊断为骨性II类错牙合、下颌平面陡峭和前牙开牙合。传统的正畸治疗被认为可以纠正上颌前突和前牙开牙合，但患者也要求改善面部美观。因此，我们决定采用拔除4颗前磨牙并结合临时支抗装置的非手术治疗方法。获得了覆牙合覆盖和功能咬合的满意改善，建立了I类磨牙关系。主动治疗在2年10个月内完成，脱粘接后2年6个月结果保持稳定。
